Sharp Notevision PG-C30XU, Руководство по обслуживанию

Страница: 27 / 108

27
PG-C30XU
No. Adjusting point Adjusting conditions Adjusting procedure
11 RGB counter-
voltage
adjustment 1. Feed the black-and-red
(25%) stripe signal (XGA).
2. Make the following choice:
Group : OUTPUT 3
Subject : RC (R)
and
Group : OUTPUT 3
Subject : RC-INV (R)
»
Using the control switches or the remote controller
buttons, adjust the data in order to minimize the
flicker.
»
Make the same adjustment for BC (B), GC (G),
RC-INV (B) and RC-INV (G).
»
See if the image is equally adjusted at the center
and both sides of the screen. If not, readjust the
setting to have the image equal at right and left.
13 RGB white
balance 1. Feed the 32-step gray scale
signal (XGA).
Group : OUTPUT 1
Subject : R1-BLK (R)
B1-BLK (B)
»
Choose the subjects R1-BLK and B1-BLK and
adjust the black balance of the gradation.
12 RGB gradation
regeneration
adjustment 1. Feed the green-only
SMPTE pattern signal
(XGA).
Group : OUTPUT 1
Subject : G1-BLK
»
Adjust the G-BLK data until the gradation of the
portion
1
(95% and 100% white) shown below
can be slightly recognized. Make sure also that
the gradation of the portion
2
(0% and 5% black)
is visible.
14 Horizontal
center 1. Feed the NTSC mono-
scope pattern signal.
2. Group : VIDEO 2
Subject : N358-DLY (4)
N443-DLY (0)
PAL-DLY (3)
SECAM-DLY (0)
Make sure the settings are
as above.
3. Group : VIDEO 1
Subject : NTSC-H
»
Using the control switches or the remote controller
buttons, adjust the data to have the same
overscan.
1 2
15 Video picture
adjustment 1. Feed the split color bar sig-
nal.
Group : VIDEO 1
Subject : PICTURE
2. Connect the oscilloscope
between pin (2) of P801
and GND.
»
Using the control switches or the remote controller
buttons, adjust the black-to-white (100%) level
difference to 2.0 ±0.02 Vp-p.
2.0Vp-p